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3 years ago

13

Kenny weight is 6/7 times melvin's weight. What is the ratio of melvin's weight to the total weight of the two boys? Give your a

nswer in fraction form

1 answer:

crimeas [40]3 years ago

5 0

So Kevin 6/7 and Melvin 7/7

Melvin weighs more

So add together the 6 and 7

And melvins weight out of 13

So it's 7/13

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How many diagonals are there in a polygon of 6o sides

OleMash [197]

Answer:

9 diagonals

Bit by bit clarification:

Number of Diagonals = n(n-3)/2

For instance, in a hexagon, the complete sides are 6.

Along these lines, the complete diagonals will be 6(6-3)/2 = 9.

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3 years ago

At a pumpkin patch, if Armando guesses the weight of his pumpkin within 0.3 pounds, he gets to take the pumpkin home for free. I

Reil [10]

Answer: last option

Step-by-step explanation:

You know that the weight of his pumpkin 4.9 pounds and that, if he guesses its weight within 0.3 pounds, he will get the pumpkin for free.

Then, to find the minimum weight he can guess in order to get his pumpkin for free, it's necessary to write the expression:

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Rewriting it:

$x-4.9=0.3$

To find the maximum weight he can guess in order to get his pumpkin for free, it's necessary to write the expression:

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Rewriting it:

$x-4.9=-0.3$

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3 years ago

Read 2 more answers

Does anyone know this

Helen [10]

Answer:Answer:

13.0feet

Step-by-step explanation:

Given ΔDEF with ∠F=90°, the measure of ∠D=19°, and DE = 40 feet, since one of the angles of the triangle is 90°, the triangle is a right angled triangle as shown in the attachment.

Using SOH, CAH, TOA to get the unknown EF.

Since <D is opposite to side EF, EF will be the opposite while side DE will be the hypotenuse

Based on SOH:

Sin<D = Opposite/Hypotenuse

Sin<D = EF/DE

Sin19° = EF/40

EF = 40sin19°

EF = 13.0 feet to the nearest tenth of a foot

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3 years ago

determine weather y varies directly with x. if so, find the constant variation and write the equation

REY [17]

Answer:

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Step-by-step explanation:

$\text{The given line passes through the origin, hence it has equation of the form:}\\y=kx$

$\text{Therefore y varies directly as x.}The line passes through the point (3,1)}$

$\text{This implies that,}$

$1=k(3)\\k=\frac{1}{3}$ $\text{Hence the constant of variation is}$ ⇒ $\frac{1}{3}$

The equation would be ⇒ $y=\frac{1}{3} x$

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2 years ago

Solve the following system: 5x + 4y = 6 -2x – 3y = -1

yanalaym [24]

Answer:

$\left \{ {{y=-1} \atop {x=2}} \right.$

Step-by-step explanation:

$\left \{ {{5x+4y=6} \atop {-2x-3y=-1}} \right. \left \{ {{10x+8y=12} \atop {-10x-15y=-5}} \right. \left \{ {{-7y=7} \atop {-10x-15y=-5}} \right. \left \{ {{y=-1} \atop {-10x-15y=-5}} \right. \left \{ {{y=-1} \atop {-10x+15=-5}} \right. \left \{ {{y=-1} \atop {-10x=-20}} \right. => \left \{ {{y=-1} \atop {x=2}} \right.$

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2 years ago